Question about Porsche 911

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I have a 1988 930 turbo. The left hand power window will only operate down wards when activated. With the switch in the off position (both LHS and RHS slave) the power window motor over heats. I have checked the switches and they are all operating ok. I have checked the power window motor and it operater up and down when connected to an independent power source so the motor is OK. There appears to be a constant power source to the motor which I cannot switch off with the window switches. The fuse is ok. I suspect that the power window relay in faulty. Can you advise me if I am correct and also tell me where the relay is in the car (can't find it anywhere). Graeme

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Hello greame
does your car battery goes dead?If you you would have a draw trough the window switches the battery would be dead.
Your problem is morelikely one of the window switches is aftermarket made in china-check into that,
the relay is located in your trunk area on the cover is diagram it is one of the front 3rd round relays .
proporsche

Posted on Feb 16, 2010

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I can't find the fuse for the power windows on a 1998 Lincoln Navigator


All the other windows work ? Not a fuse , one fuse powers all the windows . Test for B+ voltage at the switch an the window regulator would be the proper diagnostic procedure . Do you own a volt meter ? know how to read a wiring diagram ? how to do basic automotive electrical testing . The Faint click you hear is probably a relay , which means the GEM - genaric electronic modual is energizing the window relay . The windows are computer controlled .

The GEM will activate the OTD Relay until one of the following conditions is met:
  • The LF regulator control switch is pushed to the UP position.
  • The LF regulator control switch is released (OFF position) and then moved to the down position (first detent) or one touch down (OTD) position (second detent).
  • Seven seconds have elapsed since the OTD was initiated.
  • A window regulator electric drive stall condition is detected on the one touch down sense line inputs.
The UP window operation is not controlled by the GEM. The feature is activated when the delayed accessory is active and the LF window regulator control switch is pressed to the UP position. The switch provides delayed accessory power to one side of the motor and ground to the other side through the one touch down relay. The one touch down relay is not active when the LF regulator control switch is in the UP position.
Passenger windows may be raised or lowered using the LF master control switches or the appropriate passenger window switch. Passenger window switches receive power when the delayed accessory relay is active and the LF remote lock-out switch is in the UNLOCK position. When in the LOCK-OUT position, the passenger windows are deactivated.
The GEM controls manual down and auto down window movement with the down window relay. The relay is activated by applying ground directly to one side of the down window relay coil, and deactivated by removing the ground signal.
The delayed accessory relay provides power for the operation of the power windows and the power moon roof. The delayed accessory feature is active when the ignition switch is in the RUN or the ACC position, or when the ignition switch is changed from RUN or ACC to the OFF/LOCK position and the LF and RF doors are closed.
The GEM will deactivate the delayed accessory feature when:
  • the LF door is ajar and the ignition switch is in the OFF/LOCK or KEY-OUT position.
  • the RF door is ajar and the ignition switch is in the OFF/LOCK or KEY-OUT position.
  • 10 minutes have elapsed since the ignition switch was changed from ACC or RUN to the OFF/LOCK position.
Feature inputs:
  • LF door open warning switch (open circuit with door closed, grounded with door ajar).
  • RF door open warning switch (open circuit with door closed, grounded with door ajar).
  • Ignition switch RUN position (battery potential on both the RUN and RUN/ACC inputs).
  • Ignition switch ACC position (battery potential on the RUN/ACC input).
  • Ignition switch OFF/LOCK position (absence of battery potential on the RUN, RUN/ACC, and START inputs).
The Trainer 24 Power Window Troubleshooting

Mar 03, 2017 | 1998 Lincoln Navigator

1 Answer

2003 gmc envoy Windows fuse


Are all windows not working ? Two separate circuit breakers left & right . Both in rear fuse box . Fuse Block - Rear Beneath the left rear seat
Check for broken wires inside the rubber boot from body to doors.
Do you know about electronic control modules ?
The power window system consists of the following components:
?€¢
Driver door module (DDM)


?€¢
Passenger door module (PDM)


?€¢
Body control module (BCM)


?€¢
LR power window switch


?€¢
RR power window switch


?€¢
Window up and window down relays in each of the rear passenger window switches


?€¢
Window lockout switch


?€¢
Reversible power window motors in each of the doors (circuit breaker protected)


?€¢
LT DOOR CB 25A (System power for left rear window)


?€¢
RT DOOR CB 25A (System power for right rear window)


The power window system will operate anytime the retained accessory power (RAP) system is active or when the ignition switch is in the ACCY or ON position.
The DDM contains 4 power window switches which are integral components. Closing any of the normally open, rocker type switches provides the DDM with a request for power window operation. The switches for the 2 front windows have 3 positions Up, Down and Express Down, while the switches for the rear windows have only 2 positions, Up and Down. Each of these switches and their positions is a direct input into the DDM. Upon receiving a request for power window operation, the DDM, transmits a class 2 message indicating the switch and it's changed position.
The PDM contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDM with a request for the front passenger power window operation. The switch for the front passenger window has 2 positions Up and Down. Each of these switch positions is a direct input to the PDM.
The 2 rear passenger doors have there own switches. Each of the switches contain a power window up and down relay. A switch activation alone can control the up and down functions of the rear windows. However the BCM, upon receiving a class 2 message from the DDM, can control the set of relays which will activate the rear window motors.

Check

Oct 21, 2016 | 2003 GMC Envoy

1 Answer

Location of the power window relay in a 1998 cadillac eldorado


http://www.bbbind.com/free_tsb.html free wiring diagrams !
Left Front Power Window Switch
The battery voltage is applied from the WINDOWS circuit breaker through CKT 42 (RED) to the accessory time delay relay. The accessory time delay relay supplies voltage through CKT 70 (PNK) to the left front power window switch under the following conditions:
?€¢
The ignition is in the RUN position.


?€¢
The retained accessory power (RAP) is active.

When an UP switch on the left front power window switch is operated, the battery voltage is applied to the power window motor. The power window motor is grounded through the DOWN contacts of the left front power window switch to G204. The motor runs in order to drive the power window up. When a DOWN switch in the left front power window switch is operated, the battery voltage is applied to the power window motor in the opposite direction. The power window motor is grounded through the UP contacts in the left front power window switch to G204. The motor runs in order to drive the power window down.
Accessory Time Delay Relay
On the left front of the passenger compartment, taped in the body harness

Jun 18, 2016 | 1998 Chevrolet Cavalier

2 Answers

Driver door will not work lock or windows


They hooked into wiring they shouldn't have >
Power Window System Components
The power window system consists of the following components:
?€¢
Driver door module (DDM)


?€¢
Passenger door module (PDM)


?€¢
Body control module (BCM)


?€¢
LR power window switch


?€¢
RR power window switch


?€¢
Window up and window down relays in each of the rear passenger window switches


?€¢
Window lockout switch


?€¢
Reversible power window motors in each of the doors (circuit breaker protected)


?€¢
LT DOOR CB 25A (System power for left rear window)


?€¢
RT DOOR CB 25A (System power for right rear window)

Power Window System Controls
The power window system will operate anytime the retained accessory power (RAP) system is active or when the ignition switch is in the ACCY or ON position.
The DDM contains 4 power window switches which are integral components. Closing any of the normally open, rocker type switches provides the DDM with a request for power window operation. The switches for the 2 front windows have 3 positions Up, Down and Express Down, while the switches for the rear windows have only 2 positions, Up and Down. Each of these switches and their positions is a direct input into the DDM. Upon receiving a request for power window operation, the DDM, transmits a class 2 message indicating the switch and it's changed position.
The PDM contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDM with a request for the front passenger power window operation. The switch for the front passenger window has 2 positions Up and Down. Each of these switch positions is a direct input to the PDM.
The 2 rear passenger doors have there own switches. Each of the switches contain a power window up and down relay. A switch activation alone can control the up and down functions of the rear windows. However the BCM, upon receiving a class 2 message from the DDM, can control the set of relays which will activate the rear window motors.

Jan 10, 2016 | 2004 GMC Envoy

1 Answer

Power windows dont work


There is a circuit breaker for power windows .
Power Window System Components
The power window system consists of the following components:
?€¢
Driver Door Switch (DDS)


?€¢
Passenger Door Switch (PDS)


?€¢
Body Control Module (BCM)


?€¢
Rear door power window switches


?€¢
Power window motors in each of the doors


?€¢
PWR WDO Circuit Breaker


Power Window System Controls
The power window system will operate anytime the Retained Accessory Power (RAP) system is active or when the ignition switch is in the ACCY or ON position.
The driver master control switches are integrated into the DDS. When a power window switch is activated in the up or down positions the DDS supplies power and ground to the window motor control circuits to drive the window motor in the required direction. Prior to activating a power window motor the DDS will supply the control circuit with a low current bias voltage in order to determine that a short to ground condition does not exist and during window motor operation the DDS continues to monitor the motor current to verify proper window motor operation.
The DDS controls the passenger window by a serial message to the PDS. When a power window switch is activated in the up or down positions the PDS supplies power and ground to the window motor control circuits to drive the window motor in the required direction. Prior to activating a power window motor the PDS will supply the control circuit with a low current bias voltage in order to determine that a short to ground condition does not exist, and during window motor operation the PDS continues to monitor the motor current to verify proper window motor operation. (Scan tool support is available for this system
Check this circuit breaker
RETAINED ACCSRY PRW BRKR 30 amp. located in the left instrument panel fuse box . if the breaker is good check power B+ at the drivers door switch . connector 1 terminal b yellow wire . Sometimes the wires inside the rubber boot coming from body to door break .

Oct 29, 2015 | 2005 Chevrolet Impala

1 Answer

Is there a fuse for the window switch


Which window switch ? RT DOOR CB-circuit breaker , do you know what a circuit breaker is ? 25A (System power for right rear window)
LT DOOR CB 25A (System power for left rear window
The power window system will operate anytime the retained accessory power (RAP) system is active or when the ignition switch is in the ACCY or ON position.
The DDM contains 4 power window switches which are integral components. Closing any of the normally open, rocker type switches provides the DDM with a request for power window operation. The switches for the 2 front windows have 3 positions Up, Down and Express Down, while the switches for the rear windows have only 2 positions, Up and Down. Each of these switches and their positions is a direct input into the DDM. Upon receiving a request for power window operation, the DDM, transmits a class 2 message indicating the switch and it's changed position.
The PDM contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDM with a request for the front passenger power window operation. The switch for the front passenger window has 2 positions Up and Down. Each of these switch positions is a direct input to the PDM.
The 2 rear passenger doors have there own switches. Each of the switches contain a power window up and down relay. A switch activation alone can control the up and down functions of the rear windows. However the BCM, upon receiving a class 2 message from the DDM, can control the set of relays which will activate the rear window motors.


The power window system consists of the following components:
?€¢
Driver door module (DDM)


?€¢
Passenger door module (PDM)


?€¢
Body control module (BCM)


?€¢
LR power window switch


?€¢
RR power window switch


?€¢
Window up and window down relays in each of the rear passenger window switches


?€¢
Window lockout switch


?€¢
Reversible power window motors in each of the doors (circuit breaker protected)


?€¢
LT DOOR CB 25A (System power for left rear window)


?€¢
RT DOOR CB 25A (System power for right rear window)


If you not sure about any of this I suggest you take your vehicle to a ASE certified repair shop .

Oct 08, 2015 | 2002 Chevrolet TrailBlazer

1 Answer

I need the wiring schematics for driver door panel and all switches in a 2003 Chevy Tahoe. My window won't go down on that side and I'm sure I have a short somewhere because my switch works with all other...


You don't know what your getting into , The door switches have electronic control modules incorporated ,DDM- Driver door module an PDM passenger door module .
The power window system consists of the following components:
?€¢
Driver Door Module (DDM)


?€¢
Passenger Door Module (PDM)


?€¢
Body Control Module (BCM)


?€¢
RR power window switch


?€¢
Window up and window down relays in each of the rear passenger window switches


?€¢
Window lockout switch


?€¢
Reversible power window motors in each of the doors (circuit breaker protected)


?€¢
LT DOOR CB 25A (System power for left windows)


?€¢
RT DOOR CB 25A (System power for right windows)


The DDM contains four power window switches which are integral components. Closing any of the normally open, rocker type switches provides the DDM with a request for power window operation. The switches for the two front windows have three positions UP, Down and Express Down, while the switches for the rear windows have only two positions, UP and Down. Each of these switches and their positions is a direct input into the DDM. Upon receiving a request for power window operation, the DDM, transmits a Class 2 message indicating the switch and it's changed position.
The PDM contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDM with a request for the front passenger power window operation. The switch for the front passenger window has two positions Up and Down. Each of these switch positions is a direct input to the PDM.
The two rear passenger doors have there own switches. Each of the switches contain a power window up and down relay. A switch activation alone can control the up and down functions of the rear windows. However the BCM, upon receiving a Class 2 message from the DDM, can control the set of relays which will activate the rear window motors.
You need a scan tool to diagnose these systems
Power Window Inoperative - Driver Door

1

Did you perform the Door Systems Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Door Systems

2

Operate the driver power window in the UP and DOWN directions.
Does the driver power window operate properly?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

  1. Install a scan tool.
  2. Monitor the driver window status data parameter in the driver door inputs list.
Does the driver window status data parameter display an active state?
Go to Step 11
Go to Step 4

4

  1. Monitor the driver window status data parameter in the driver door module inputs list.
  2. Activate the driver power window switch in the up and down positions.
Does the driver window status data parameter change accordingly?
Go to Step 5
The data link connector (DLC) allows a scan tool to communicate with the class 2 serial data line. The serial data line is the means by which the microprocessor-controlled modules in the vehicle communicate with each other. Once the scan tool is connected to the class 2 serial data line through the DLC, the scan tool can be used to monitor each module for diagnostic purposes and to check for diagnostic trouble codes (DTCs). Class 2 serial data is transmitted on a single wire at an average of 10.4 kbps.

You

Mar 24, 2015 | Cars & Trucks

2 Answers

None of my power windows on 1998 Mercury Mountaineer work, checked fuses but can't find power relay if there is one. Any suggestions


If you checked the fuses and they are fine, try this. With the key on and the window button down or up, open and close the door holding in the up or down position. If the window moves, there is a wire(s) are broken in the wire harness that goes from the door jam to the door. This is a common problem that we find with window and door operating problems. You may find 1 bad or broken wire, or 4-5 broken wires. Let us know if this help you find a repair, for this concern. Craig

Jan 23, 2010 | 1998 Mercury Mountaineer

1 Answer

2003 F250 Power Windows won't work


check fuses 35 & 41 (10 amp, red).
it also shows an accesory delay relay in the fuse panel.
And fuse 601? 30 amp.

make sure you don't have lock-out on driver switch panel activated.

Power Window System
Features and Operation
NOTE: The accessory delay feature will allow power window operation up to 10 minutes after the ignition is off or until a door is opened.
If equipped with power windows, the window control switch (14529):
  • will operate the power windows only when the ignition switch is in the RUN or ACC position.
  • is located on each front door trim panel, and Crew Cab and Excursion rear door trim panel.
  • may be used to raise or lower the driver side, passenger side and rear windows from the LF control on the driver side, or the passenger window from the passenger switch.
  • includes a one-touch down (OTD) feature for the driver door window.
  • can partially lower the driver side window when the LF window control switch is depressed half way (first detent).
  • will completely lower the driver side window when the LF window control switch is fully depressed and then released (second detent).
Power Window System — Modes of Operation
There are two modes of operation for the power window system.
Manual Mode
When the LH window control switch is pressed to the first down position, the window will move down until one of the following conditions are met:
  • The LH window control switch is no longer in the first down position.
  • The LH window control switch is pushed to the OTD position, causing the windows to enter auto mode.
Auto Mode
Auto mode provides the OTD feature. The OTD feature is activated when the LH window control switch, for the LH window, is pressed to the second down position.
Auto mode will be terminated when any of the following conditions are met:
  • The LH window control switch is pushed to the UP position.
  • The LH window control switch is released (OFF position) and then moved to the DOWN position (first detent) or OTD position (second detent).
  • Note: Delayed accessory feature must be active.
The OTD feature is controlled by the window control switch.

---------------------------------------------------------
Condition Possible Sources Action
  • All power windows are inoperative
  • Fuse(s).
  • Circuitry.
  • LF window control switch.
  • Accessory delay relay.

May 23, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

Is the fuse panel under the hood the only place fuses are located? and i dont have manual to see which fuse is for my driver side window... its not working


you have fuses inside the car on the dash about where left knee is.
This is for 2003, don't have 2004. should be similar.

fuse 2.43, 20 amps, yellow, central junction box in car


Principles of Operation
Power Window Control
NOTE: Battery power and ground must be removed before disconnecting the GEM connectors to avoid setting false DTCs.
The driver power window one-touch down operation is controlled by the generic electronic module (GEM). This feature functions only when the ignition switch is in the RUN or ACCY positions. The GEM determines ignition switch position by monitoring the key-in ignition, RUN/ACCY and RUN/START circuits. The one-touch down operation is requested of the GEM by momentarily pressing the driver window regulator control switch DOWN for 62 ms to 320 ms. The GEM uses the initial voltage input from the down switch to begin the one-touch down operation. If the voltage input was less than 320 ms, the GEM will maintain the voltage supply to the motor down circuit. The GEM will maintain the operation until:
  • seven seconds expires.
  • motor stall is detected by monitoring the current draw.
  • a voltage input is received by the GEM on either the up or down switch circuits.
The ground for one-touch down operation does not pass through the GEM. The ground is supplied through the driver window regulator control switch as with normal operation. If the GEM continues to see voltage on the down circuit for more than 320 ms after initial activation the GEM will not effect operation. The down circuit through the GEM is a direct connection to the motor in its normal state. This allows the driver window regulator control switch to control the motor for normal operation.
The passenger window motors are hardwired directly to the window regulator control switches.

Apr 27, 2009 | 2004 Ford Mustang

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